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Wildlife Specialist report

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largely unknown, but it is thought they burrow into leaf litter or dense grass, similar to<br />

eastern red bats (Bat Conservation International 2009). Summer habitat associations<br />

include: coniferous forest; closed pinyon-juniper woodlands; open encinal oak; Great<br />

Basin shrublands; Mohave and Sonoran desert scrub; Chihuahuan desert grassland; short<br />

grass steppe; deciduous riparian forest including cottonwood, sycamore, walnut, and oak;<br />

dry and irrigated agricultural lands; mines and quarries; and urban habitats (Hoffmeister<br />

1986).<br />

Arizona gray squirrel (Forest Service Sensitive Species Representative of Low and<br />

Middle Elevation Riparian Vegetation Cover Types) – This gray squirrel inhabits<br />

hardwood, mixed oak and pine forests. They are found in river valleys and canyons, and<br />

where black walnuts and acorns are abundant. Also found in cottonwood and sycamore<br />

groves. They make leaf nests in trees (NatureServe, 2009). The Arizona gray squirrel is<br />

primarily limited to the deciduous riparian forest of the Gila. We took one in Mogollon<br />

at the upper limit of its range (at 7,000 feet) from a ponderosa pine area (BISON-M,<br />

2009).<br />

White-nosed coati, Western red bat, and Arizona gray squirrel have been selected as focal<br />

species for small mammals that occur in low and middle elevation riparian areas. For<br />

the analysis of this species the analysis indicators (road miles and acres of potential<br />

disturbance) will analyze the change in low and middle elevation riparian habitat by<br />

alternative from the existing condition.<br />

Small Mammal Summary:<br />

Table 27 list road associated and motorized trail factors related to small mammals for<br />

focal species that represent this group (Gaines et al. 2003); analysis factors based on the<br />

analysis factor discussed above; and the indicator that will be used to compare the<br />

different levels of affect between the different alternatives.<br />

Table 27:<br />

Focal Group/<br />

Species<br />

Small<br />

Mammals<br />

Road Associated Motorized Trail Combined Analysis Analysis<br />

Factors<br />

Associated Factors Factors<br />

Indicator<br />

Collisions, Trapping Collisions Harvest/Direct Effects Miles<br />

Disturbance,<br />

Displacement, Avoidance,<br />

Harassment<br />

Disturbance,<br />

Displacement, Avoidance,<br />

Harassment<br />

Disturbance/Indirect<br />

Effects<br />

Disturbance Zone<br />

Summarized In<br />

Acres<br />

Table 28 summarizes the harvest indicator, disturbance indicator, and analysis area that<br />

will be used to analyze the effects of the different alternatives to small mammals.<br />

47

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